Merge tag 'linux_kselftest-next-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest updates from Shuah Khan:

 - kbuild kselftest-merge target fixes

 - fixes to several tests

 - resctrl test fixes and enhancements

 - ksft_perror() helper and reporting improvements

 - printf attribute to kselftest prints to improve reporting

 - documentation and clang build warning fixes

The bulk of the patches are for resctrl fixes and enhancements.

* tag 'linux_kselftest-next-6.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (51 commits)
  selftests/resctrl: Fix MBM test failure when MBA unavailable
  selftests/clone3: Report descriptive test names
  selftests:modify the incorrect print format
  selftests/efivarfs: create-read: fix a resource leak
  selftests/ftrace: Add riscv support for kprobe arg tests
  selftests/ftrace: add loongarch support for kprobe args char tests
  selftests/amd-pstate: Added option to provide perf binary path
  selftests/amd-pstate: Fix broken paths to run workloads in amd-pstate-ut
  selftests/resctrl: Move run_benchmark() to a more fitting file
  selftests/resctrl: Fix schemata write error check
  selftests/resctrl: Reduce failures due to outliers in MBA/MBM tests
  selftests/resctrl: Fix feature checks
  selftests/resctrl: Refactor feature check to use resource and feature name
  selftests/resctrl: Move _GNU_SOURCE define into Makefile
  selftests/resctrl: Remove duplicate feature check from CMT test
  selftests/resctrl: Extend signal handler coverage to unmount on receiving signal
  selftests/resctrl: Fix uninitialized .sa_flags
  selftests/resctrl: Cleanup benchmark argument parsing
  selftests/resctrl: Remove ben_count variable
  selftests/resctrl: Make benchmark command const and build it with pointers
  ...

56 files changed, 691 insertions, 552 deletions

diff --git a/tools/testing/selftests/amd-pstate/gitsource.sh b/tools/testing/selftests/amd-pstate/gitsource.sh
index 5f2171f0116d..4cde62f90468 100755
--- a/tools/testing/selftests/amd-pstate/gitsource.sh
+++ b/tools/testing/selftests/amd-pstate/gitsource.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # SPDX-License-Identifier: GPL-2.0
 
 # Testing and monitor the cpu desire performance, frequency, load,
@@ -66,12 +66,15 @@ post_clear_gitsource()
 
 install_gitsource()
 {
-	if [ ! -d $git_name ]; then
+	if [ ! -d $SCRIPTDIR/$git_name ]; then
+		pushd $(pwd) > /dev/null 2>&1
+		cd $SCRIPTDIR
 		printf "Download gitsource, please wait a moment ...\n\n"
 		wget -O $git_tar $gitsource_url > /dev/null 2>&1
 
 		printf "Tar gitsource ...\n\n"
 		tar -xzf $git_tar
+		popd > /dev/null 2>&1
 	fi
 }
 
@@ -79,12 +82,14 @@ install_gitsource()
 run_gitsource()
 {
 	echo "Launching amd pstate tracer for $1 #$2 tracer_interval: $TRACER_INTERVAL"
-	./amd_pstate_trace.py -n tracer-gitsource-$1-$2 -i $TRACER_INTERVAL > /dev/null 2>&1 &
+	$TRACER -n tracer-gitsource-$1-$2 -i $TRACER_INTERVAL > /dev/null 2>&1 &
 
 	printf "Make and test gitsource for $1 #$2 make_cpus: $MAKE_CPUS\n"
-	cd $git_name
-	perf stat -a --per-socket -I 1000 -e power/energy-pkg/ /usr/bin/time -o ../$OUTFILE_GIT.time-gitsource-$1-$2.log make test -j$MAKE_CPUS > ../$OUTFILE_GIT-perf-$1-$2.log 2>&1
-	cd ..
+	BACKUP_DIR=$(pwd)
+	pushd $BACKUP_DIR > /dev/null 2>&1
+	cd $SCRIPTDIR/$git_name
+	$PERF stat -a --per-socket -I 1000 -e power/energy-pkg/ /usr/bin/time -o $BACKUP_DIR/$OUTFILE_GIT.time-gitsource-$1-$2.log make test -j$MAKE_CPUS > $BACKUP_DIR/$OUTFILE_GIT-perf-$1-$2.log 2>&1
+	popd > /dev/null 2>&1
 
 	for job in `jobs -p`
 	do
diff --git a/tools/testing/selftests/amd-pstate/run.sh b/tools/testing/selftests/amd-pstate/run.sh
index de4d8e9c9565..b053eea8bb19 100755
--- a/tools/testing/selftests/amd-pstate/run.sh
+++ b/tools/testing/selftests/amd-pstate/run.sh
@@ -8,9 +8,12 @@ else
 	FILE_MAIN=DONE
 fi
 
-source basic.sh
-source tbench.sh
-source gitsource.sh
+SCRIPTDIR=`dirname "$0"`
+TRACER=$SCRIPTDIR/../../../power/x86/amd_pstate_tracer/amd_pstate_trace.py
+
+source $SCRIPTDIR/basic.sh
+source $SCRIPTDIR/tbench.sh
+source $SCRIPTDIR/gitsource.sh
 
 # amd-pstate-ut only run on x86/x86_64 AMD systems.
 ARCH=$(uname -m 2>/dev/null | sed -e 's/i.86/x86/' -e 's/x86_64/x86/')
@@ -22,6 +25,7 @@ OUTFILE=selftest
 OUTFILE_TBENCH="$OUTFILE.tbench"
 OUTFILE_GIT="$OUTFILE.gitsource"
 
+PERF=/usr/bin/perf
 SYSFS=
 CPUROOT=
 CPUFREQROOT=
@@ -151,6 +155,7 @@ help()
 	[-p <tbench process number>]
 	[-l <loop times for tbench>]
 	[-i <amd tracer interval>]
+	[-b <perf binary>]
 	[-m <comparative test: acpi-cpufreq>]
 	\n"
 	exit 2
@@ -158,7 +163,7 @@ help()
 
 parse_arguments()
 {
-	while getopts ho:c:t:p:l:i:m: arg
+	while getopts ho:c:t:p:l:i:b:m: arg
 	do
 		case $arg in
 			h) # --help
@@ -189,6 +194,10 @@ parse_arguments()
 				TRACER_INTERVAL=$OPTARG
 				;;
 
+			b) # --perf-binary
+				PERF=`realpath $OPTARG`
+				;;
+
 			m) # --comparative-test
 				COMPARATIVE_TEST=$OPTARG
 				;;
@@ -202,8 +211,8 @@ parse_arguments()
 
 command_perf()
 {
-	if ! command -v perf > /dev/null; then
-		echo $msg please install perf. >&2
+	if ! $PERF -v; then
+		echo $msg please install perf or provide perf binary path as argument >&2
 		exit $ksft_skip
 	fi
 }
diff --git a/tools/testing/selftests/amd-pstate/tbench.sh b/tools/testing/selftests/amd-pstate/tbench.sh
index 49c9850341f6..2a98d9c9202e 100755
--- a/tools/testing/selftests/amd-pstate/tbench.sh
+++ b/tools/testing/selftests/amd-pstate/tbench.sh
@@ -64,11 +64,11 @@ post_clear_tbench()
 run_tbench()
 {
 	echo "Launching amd pstate tracer for $1 #$2 tracer_interval: $TRACER_INTERVAL"
-	./amd_pstate_trace.py -n tracer-tbench-$1-$2 -i $TRACER_INTERVAL > /dev/null 2>&1 &
+	$TRACER -n tracer-tbench-$1-$2 -i $TRACER_INTERVAL > /dev/null 2>&1 &
 
 	printf "Test tbench for $1 #$2 time_limit: $TIME_LIMIT procs_num: $PROCESS_NUM\n"
 	tbench_srv > /dev/null 2>&1 &
-	perf stat -a --per-socket -I 1000 -e power/energy-pkg/ tbench -t $TIME_LIMIT $PROCESS_NUM > $OUTFILE_TBENCH-perf-$1-$2.log 2>&1
+	$PERF stat -a --per-socket -I 1000 -e power/energy-pkg/ tbench -t $TIME_LIMIT $PROCESS_NUM > $OUTFILE_TBENCH-perf-$1-$2.log 2>&1
 
 	pid=`pidof tbench_srv`
 	kill $pid
diff --git a/tools/testing/selftests/cachestat/test_cachestat.c b/tools/testing/selftests/cachestat/test_cachestat.c
index 4804c7dc7b31..b171fd53b004 100644
--- a/tools/testing/selftests/cachestat/test_cachestat.c
+++ b/tools/testing/selftests/cachestat/test_cachestat.c
@@ -27,7 +27,7 @@ static const char * const dev_files[] = {
 void print_cachestat(struct cachestat *cs)
 {
 	ksft_print_msg(
-	"Using cachestat: Cached: %lu, Dirty: %lu, Writeback: %lu, Evicted: %lu, Recently Evicted: %lu\n",
+	"Using cachestat: Cached: %llu, Dirty: %llu, Writeback: %llu, Evicted: %llu, Recently Evicted: %llu\n",
 	cs->nr_cache, cs->nr_dirty, cs->nr_writeback,
 	cs->nr_evicted, cs->nr_recently_evicted);
 }
diff --git a/tools/testing/selftests/capabilities/Makefile b/tools/testing/selftests/capabilities/Makefile
index 6e9d98d457d5..411ac098308f 100644
--- a/tools/testing/selftests/capabilities/Makefile
+++ b/tools/testing/selftests/capabilities/Makefile
@@ -2,7 +2,7 @@
 TEST_GEN_FILES := validate_cap
 TEST_GEN_PROGS := test_execve
 
-CFLAGS += -O2 -g -std=gnu99 -Wall
+CFLAGS += -O2 -g -std=gnu99 -Wall $(KHDR_INCLUDES)
 LDLIBS += -lcap-ng -lrt -ldl
 
 include ../lib.mk
diff --git a/tools/testing/selftests/capabilities/test_execve.c b/tools/testing/selftests/capabilities/test_execve.c
index df0ef02b4036..e3a352b020a7 100644
--- a/tools/testing/selftests/capabilities/test_execve.c
+++ b/tools/testing/selftests/capabilities/test_execve.c
@@ -20,14 +20,6 @@
 
 #include "../kselftest.h"
 
-#ifndef PR_CAP_AMBIENT
-#define PR_CAP_AMBIENT			47
-# define PR_CAP_AMBIENT_IS_SET		1
-# define PR_CAP_AMBIENT_RAISE		2
-# define PR_CAP_AMBIENT_LOWER		3
-# define PR_CAP_AMBIENT_CLEAR_ALL	4
-#endif
-
 static int nerrs;
 static pid_t mpid;	/*  main() pid is used to avoid duplicate test counts */
 
diff --git a/tools/testing/selftests/capabilities/validate_cap.c b/tools/testing/selftests/capabilities/validate_cap.c
index cdfc94268fe6..60b4e7b716a7 100644
--- a/tools/testing/selftests/capabilities/validate_cap.c
+++ b/tools/testing/selftests/capabilities/validate_cap.c
@@ -9,14 +9,6 @@
 
 #include "../kselftest.h"
 
-#ifndef PR_CAP_AMBIENT
-#define PR_CAP_AMBIENT			47
-# define PR_CAP_AMBIENT_IS_SET		1
-# define PR_CAP_AMBIENT_RAISE		2
-# define PR_CAP_AMBIENT_LOWER		3
-# define PR_CAP_AMBIENT_CLEAR_ALL	4
-#endif
-
 #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19)
 # define HAVE_GETAUXVAL
 #endif
diff --git a/tools/testing/selftests/clone3/clone3.c b/tools/testing/selftests/clone3/clone3.c
index e60cf4da8fb0..9429d361059e 100644
--- a/tools/testing/selftests/clone3/clone3.c
+++ b/tools/testing/selftests/clone3/clone3.c
@@ -7,6 +7,7 @@
 #include <inttypes.h>
 #include <linux/types.h>
 #include <linux/sched.h>
+#include <stdbool.h>
 #include <stdint.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -103,8 +104,8 @@ static int call_clone3(uint64_t flags, size_t size, enum test_mode test_mode)
 	return 0;
 }
 
-static void test_clone3(uint64_t flags, size_t size, int expected,
-		       enum test_mode test_mode)
+static bool test_clone3(uint64_t flags, size_t size, int expected,
+			enum test_mode test_mode)
 {
 	int ret;
 
@@ -114,92 +115,210 @@ static void test_clone3(uint64_t flags, size_t size, int expected,
 	ret = call_clone3(flags, size, test_mode);
 	ksft_print_msg("[%d] clone3() with flags says: %d expected %d\n",
 			getpid(), ret, expected);
-	if (ret != expected)
-		ksft_test_result_fail(
+	if (ret != expected) {
+		ksft_print_msg(
 			"[%d] Result (%d) is different than expected (%d)\n",
 			getpid(), ret, expected);
-	else
-		ksft_test_result_pass(
-			"[%d] Result (%d) matches expectation (%d)\n",
-			getpid(), ret, expected);
-}
-
-int main(int argc, char *argv[])
-{
-	uid_t uid = getuid();
-
-	ksft_print_header();
-	ksft_set_plan(19);
-	test_clone3_supported();
-
-	/* Just a simple clone3() should return 0.*/
-	test_clone3(0, 0, 0, CLONE3_ARGS_NO_TEST);
-
-	/* Do a clone3() in a new PID NS.*/
-	if (uid == 0)
-		test_clone3(CLONE_NEWPID, 0, 0, CLONE3_ARGS_NO_TEST);
-	else
-		ksft_test_result_skip("Skipping clone3() with CLONE_NEWPID\n");
-
-	/* Do a clone3() with CLONE_ARGS_SIZE_VER0. */
-	test_clone3(0, CLONE_ARGS_SIZE_VER0, 0, CLONE3_ARGS_NO_TEST);
-
-	/* Do a clone3() with CLONE_ARGS_SIZE_VER0 - 8 */
-	test_clone3(0, CLONE_ARGS_SIZE_VER0 - 8, -EINVAL, CLONE3_ARGS_NO_TEST);
-
-	/* Do a clone3() with sizeof(struct clone_args) + 8 */
-	test_clone3(0, sizeof(struct __clone_args) + 8, 0, CLONE3_ARGS_NO_TEST);
-
-	/* Do a clone3() with exit_signal having highest 32 bits non-zero */
-	test_clone3(0, 0, -EINVAL, CLONE3_ARGS_INVAL_EXIT_SIGNAL_BIG);
+		return false;
+	}
 
-	/* Do a clone3() with negative 32-bit exit_signal */
-	test_clone3(0, 0, -EINVAL, CLONE3_ARGS_INVAL_EXIT_SIGNAL_NEG);
+	return true;
+}
 
-	/* Do a clone3() with exit_signal not fitting into CSIGNAL mask */
-	test_clone3(0, 0, -EINVAL, CLONE3_ARGS_INVAL_EXIT_SIGNAL_CSIG);
+typedef bool (*filter_function)(void);
+typedef size_t (*size_function)(void);
 
-	/* Do a clone3() with NSIG < exit_signal < CSIG */
-	test_clone3(0, 0, -EINVAL, CLONE3_ARGS_INVAL_EXIT_SIGNAL_NSIG);
+static bool not_root(void)
+{
+	if (getuid() != 0) {
+		ksft_print_msg("Not running as root\n");
+		return true;
+	}
 
-	test_clone3(0, sizeof(struct __clone_args) + 8, 0, CLONE3_ARGS_ALL_0);
+	return false;
+}
 
-	test_clone3(0, sizeof(struct __clone_args) + 16, -E2BIG,
-			CLONE3_ARGS_ALL_0);
+static size_t page_size_plus_8(void)
+{
+	return getpagesize() + 8;
+}
 
-	test_clone3(0, sizeof(struct __clone_args) * 2, -E2BIG,
-			CLONE3_ARGS_ALL_0);
+struct test {
+	const char *name;
+	uint64_t flags;
+	size_t size;
+	size_function size_function;
+	int expected;
+	enum test_mode test_mode;
+	filter_function filter;
+};
 
-	/* Do a clone3() with > page size */
-	test_clone3(0, getpagesize() + 8, -E2BIG, CLONE3_ARGS_NO_TEST);
+static const struct test tests[] = {
+	{
+		.name = "simple clone3()",
+		.flags = 0,
+		.size = 0,
+		.expected = 0,
+		.test_mode = CLONE3_ARGS_NO_TEST,
+	},
+	{
+		.name = "clone3() in a new PID_NS",
+		.flags = CLONE_NEWPID,
+		.size = 0,
+		.expected = 0,
+		.test_mode = CLONE3_ARGS_NO_TEST,
+		.filter = not_root,
+	},
+	{
+		.name = "CLONE_ARGS_SIZE_VER0",
+		.flags = 0,
+		.size = CLONE_ARGS_SIZE_VER0,
+		.expected = 0,
+		.test_mode = CLONE3_ARGS_NO_TEST,
+	},
+	{
+		.name = "CLONE_ARGS_SIZE_VER0 - 8",
+		.flags = 0,
+		.size = CLONE_ARGS_SIZE_VER0 - 8,
+		.expected = -EINVAL,
+		.test_mode = CLONE3_ARGS_NO_TEST,
+	},
+	{
+		.name = "sizeof(struct clone_args) + 8",
+		.flags = 0,
+		.size = sizeof(struct __clone_args) + 8,
+		.expected = 0,
+		.test_mode = CLONE3_ARGS_NO_TEST,
+	},
+	{
+		.name = "exit_signal with highest 32 bits non-zero",
+		.flags = 0,
+		.size = 0,
+		.expected = -EINVAL,
+		.test_mode = CLONE3_ARGS_INVAL_EXIT_SIGNAL_BIG,
+	},
+	{
+		.name = "negative 32-bit exit_signal",
+		.flags = 0,
+		.size = 0,
+		.expected = -EINVAL,
+		.test_mode = CLONE3_ARGS_INVAL_EXIT_SIGNAL_NEG,
+	},
+	{
+		.name = "exit_signal not fitting into CSIGNAL mask",
+		.flags = 0,
+		.size = 0,
+		.expected = -EINVAL,
+		.test_mode = CLONE3_ARGS_INVAL_EXIT_SIGNAL_CSIG,
+	},
+	{
+		.name = "NSIG < exit_signal < CSIG",
+		.flags = 0,
+		.size = 0,
+		.expected = -EINVAL,
+		.test_mode = CLONE3_ARGS_INVAL_EXIT_SIGNAL_NSIG,
+	},
+	{
+		.name = "Arguments sizeof(struct clone_args) + 8",
+		.flags = 0,
+		.size = sizeof(struct __clone_args) + 8,
+		.expected = 0,
+		.test_mode = CLONE3_ARGS_ALL_0,
+	},
+	{
+		.name = "Arguments sizeof(struct clone_args) + 16",
+		.flags = 0,
+		.size = sizeof(struct __clone_args) + 16,
+		.expected = -E2BIG,
+		.test_mode = CLONE3_ARGS_ALL_0,
+	},
+	{
+		.name = "Arguments sizeof(struct clone_arg) * 2",
+		.flags = 0,
+		.size = sizeof(struct __clone_args) + 16,
+		.expected = -E2BIG,
+		.test_mode = CLONE3_ARGS_ALL_0,
+	},
+	{
+		.name = "Arguments > page size",
+		.flags = 0,
+		.size_function = page_size_plus_8,
+		.expected = -E2BIG,
+		.test_mode = CLONE3_ARGS_NO_TEST,
+	},
+	{
+		.name = "CLONE_ARGS_SIZE_VER0 in a new PID NS",
+		.flags = CLONE_NEWPID,
+		.size = CLONE_ARGS_SIZE_VER0,
+		.expected = 0,
+		.test_mode = CLONE3_ARGS_NO_TEST,
+		.filter = not_root,
+	},
+	{
+		.name = "CLONE_ARGS_SIZE_VER0 - 8 in a new PID NS",
+		.flags = CLONE_NEWPID,
+		.size = CLONE_ARGS_SIZE_VER0 - 8,
+		.expected = -EINVAL,
+		.test_mode = CLONE3_ARGS_NO_TEST,
+	},
+	{
+		.name = "sizeof(struct clone_args) + 8 in a new PID NS",
+		.flags = CLONE_NEWPID,
+		.size = sizeof(struct __clone_args) + 8,
+		.expected = 0,
+		.test_mode = CLONE3_ARGS_NO_TEST,
+		.filter = not_root,
+	},
+	{
+		.name = "Arguments > page size in a new PID NS",
+		.flags = CLONE_NEWPID,
+		.size_function = page_size_plus_8,
+		.expected = -E2BIG,
+		.test_mode = CLONE3_ARGS_NO_TEST,
+	},
+	{
+		.name = "New time NS",
+		.flags = CLONE_NEWTIME,
+		.size = 0,
+		.expected = 0,
+		.test_mode = CLONE3_ARGS_NO_TEST,
+	},
+	{
+		.name = "exit signal (SIGCHLD) in flags",
+		.flags = SIGCHLD,
+		.size = 0,
+		.expected = -EINVAL,
+		.test_mode = CLONE3_ARGS_NO_TEST,
+	},
+};
 
-	/* Do a clone3() with CLONE_ARGS_SIZE_VER0 in a new PID NS. */
-	if (uid == 0)
-		test_clone3(CLONE_NEWPID, CLONE_ARGS_SIZE_VER0, 0,
-				CLONE3_ARGS_NO_TEST);
-	else
-		ksft_test_result_skip("Skipping clone3() with CLONE_NEWPID\n");
+int main(int argc, char *argv[])
+{
+	size_t size;
+	int i;
 
-	/* Do a clone3() with CLONE_ARGS_SIZE_VER0 - 8 in a new PID NS */
-	test_clone3(CLONE_NEWPID, CLONE_ARGS_SIZE_VER0 - 8, -EINVAL,
-			CLONE3_ARGS_NO_TEST);
+	ksft_print_header();
+	ksft_set_plan(ARRAY_SIZE(tests));
+	test_clone3_supported();
 
-	/* Do a clone3() with sizeof(struct clone_args) + 8 in a new PID NS */
-	if (uid == 0)
-		test_clone3(CLONE_NEWPID, sizeof(struct __clone_args) + 8, 0,
-				CLONE3_ARGS_NO_TEST);
-	else
-		ksft_test_result_skip("Skipping clone3() with CLONE_NEWPID\n");
+	for (i = 0; i < ARRAY_SIZE(tests); i++) {
+		if (tests[i].filter && tests[i].filter()) {
+			ksft_test_result_skip("%s\n", tests[i].name);
+			continue;
+		}
 
-	/* Do a clone3() with > page size in a new PID NS */
-	test_clone3(CLONE_NEWPID, getpagesize() + 8, -E2BIG,
-			CLONE3_ARGS_NO_TEST);
+		if (tests[i].size_function)
+			size = tests[i].size_function();
+		else
+			size = tests[i].size;
 
-	/* Do a clone3() in a new time namespace */
-	test_clone3(CLONE_NEWTIME, 0, 0, CLONE3_ARGS_NO_TEST);
+		ksft_print_msg("Running test '%s'\n", tests[i].name);
 
-	/* Do a clone3() with exit signal (SIGCHLD) in flags */
-	test_clone3(SIGCHLD, 0, -EINVAL, CLONE3_ARGS_NO_TEST);
+		ksft_test_result(test_clone3(tests[i].flags, size,
+					     tests[i].expected,
+					     tests[i].test_mode),
+				 "%s\n", tests[i].name);
+	}
 
 	ksft_finished();
 }
diff --git a/tools/testing/selftests/clone3/clone3_cap_checkpoint_restore.c b/tools/testing/selftests/clone3/clone3_cap_checkpoint_restore.c
index 52d3f0364bda..31b56d625655 100644
--- a/tools/testing/selftests/clone3/clone3_cap_checkpoint_restore.c
+++ b/tools/testing/selftests/clone3/clone3_cap_checkpoint_restore.c
@@ -27,9 +27,7 @@
 #include "../kselftest_harness.h"
 #include "clone3_selftests.h"
 
-#ifndef MAX_PID_NS_LEVEL
 #define MAX_PID_NS_LEVEL 32
-#endif
 
 static void child_exit(int ret)
 {
diff --git a/tools/testing/selftests/clone3/clone3_clear_sighand.c b/tools/testing/selftests/clone3/clone3_clear_sighand.c
index 47a8c0fc3676..54a8b2445be9 100644
--- a/tools/testing/selftests/clone3/clone3_clear_sighand.c
+++ b/tools/testing/selftests/clone3/clone3_clear_sighand.c
@@ -16,10 +16,6 @@
 #include "../kselftest.h"
 #include